Better check that again. It took quite a while before Canadian privatization began working out. Read more recent ones like England, The Netherlands, New Zealand. I think you will find it is not all coming up roses. I read an article on the Netherlands in April where there were private contractors that were still working through the Christmas rush. If that would be acceptable to you, well then push the Privatize button.
The US enjoys postage rates that are among the lowest in the world. USPS also delivers about 40% of the total world volume of mail. The USPS is the most innovative in the world. I know that because when USPS develops new methods for handling mail, other countries, or corporations line up to buy the obsolete equipment.